SE INVICEM TERCVTlEmiVM. %i 



Thut etiam -{yc-^C-^^^^^^^f )m, ideoqiic elici- 



tas rj — yzflllzLIJIl M — i- eodem modo, fi 



vocetiu- /> velocitds progrefliua corporis B pofl: impiiirum 

 muemetur p — V^ r-^^ -Httl — \ Q.E.I. 



Scholion. 



XXXi. In Propofitione praecedenti generaliter ex- 

 prefllmus nitiones inter velocitates globorum progrefliuas 

 et gyratorias poft impulliim per has fradiones ^-, \ , in 

 applicatione vero ad cafus fpeciales pro jtt \ fubftituen- 

 dae erunt rationes qiiae maxime videbuntiir probabiles ; 

 V. gr. fi globi admodum tente moueantur fuper plano 

 afpero, erit rotatio fenfibiliter perfeda (Prop. XX. ) et 

 fingulae harum fracflionum ^,|-,^et7 aequales erunt 

 vnitati. Hunc calirm quia crt rrequcntiffimus 5 in fe- 

 quenti propofitione feorfmi tradlabimnso 



Problema 5'. 



XXXII. Tyaia velodtate duonim globorum A et B,. Fig. 

 rotando Je Inuicejn pemitientlum ^ determinare velocitates^ 

 quas babebunt pojl impuljum pofitis ghbis tam ante quain 

 pGJl collifionem perfe&e rotantibus^ 



Solutio. 



Pofitis iisdem , quibus in Prop. XXX , nifi quod fit 

 miizc yH — e yfzzg Qt b—ij erit vis viua globi A poft 



impufl- 



